{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf951f1e378ba2775a6195d6d95381a2ef00d69df38aeff0a5ffe5d80d13a4ddf",
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    "signer": "0xb18D2c0C8Aae7bA7C122784dDaB20C1f2876D3A3",
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}